如果你没学好，只能说明你不够努力，仅此。
封装类DBDA页面:
<?php
header("content-type:text/html;charset=utf-8");
class DBDA
{
public $host="localhost";
public $uid="root";
public $pwd="123";
public $dbconnect;
function query($sql,$type=1,$dbname="diaocha")
{
$this->dbconnect=new MySQLi($this->host,$this->uid,$this->pwd,$dbname);
if(!mysqli_connect_error())
{
$result=$this->dbconnect->query($sql);
if($type==1)
{
return $result->fetch_all();
}
else
{
return $result;
}
}
else
{
echo "连接失败";
}
}
}
主页面:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<div>
<?php
include "DBDA.CLASS.PHP";
$timu=new DBDA();
$sql="select title from diaoyantimu where ids=1";
$a=$timu->query($sql);
foreach($a as $v)
{
echo "{$v[0]}";
}
?>
<form action="result1.php" method="post">
<?php
$dx=new DBDA();
$sql="select * from diaoyanxuanxiang where timudaihao=1";
$b=$dx->query($sql);
foreach($b as $n)
{
echo "<input type=‘checkbox‘ name=‘check[]‘ value=‘{$n[0]}‘/>{$n[1]}<br />";
}
?>
<input type="submit" value="提交"/>
<a href="result.php"><input type="button" value="查看结果"/></a>
</form>
</div>
</body>
</html>
点击查看结果按钮(butturn)效果页面:
<body>
<?php
include "DBDA.class.php";
$xx=new DBDA();
//输出题目
$s="select * from diaoyantimu where ids=1";
$shuzu=$xx->query($s);
echo $shuzu[0][1];
//输出选项
$sql="select * from diaoyanxuanxiang where timudaihao=1";
$attr=$xx->query($sql);
$sq="select sum(numbers) from diaoyanxuanxiang where timudaihao=1";
$at=$xx->query($sq);
$total=$at[0][0];
foreach($attr as $v)
{
$d=($v[2]/$total)*100;
echo "<div>
<span style=‘float:left;‘>{$v[1]} </span>
<div style=‘width:100px; height:15px; border:1px solid #000000; float:left‘>
<div style=‘width:{$d}%;height:15px; background-color:red;‘>
</div>
</div>;
<span style=‘float:left‘> {$v[2]}</span>
<span style=‘float:left‘> {$d}%</span>
</div>";
}
?>
<a href="prctice.php"><input style="cursor:pointer;" type="button" value="返回"/></a>
</body>
提交处理页面:
<?php
//提交
include "DBDA.class.php";
$dx=new DBDA();
if(!empty($_POST))
{
$v1=$_POST["check"];//获取到的是数组
var_dump($v1);
foreach($v1 as $v2)
{
$s="update diaoyanxuanxiang set numbers=numbers+1 where ids={$v2}";
var_dump($s);
$dx->query($s,2);
//var_dump($dx->query($s,0));
}
}
header("location:result.php");
时间： 2024-07-30 10:40:32